fix: change OMC to PSAP

debbuild/22.04/DEBIAN/postrm

@@ -7,7 +7,7 @@ rm -f /usr/local/bin/omcd
 systemctl daemon-reload
 
 if systemctl list-units --type=service --all | grep -q 'restagent.service'; then
-    echo -n "Stopping OMC service ... "
+    echo -n "Stopping PSAP service ... "
     systemctl stop restagent.service
     systemctl stop sshsvc.service
     echo "done"